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4.5 Connection of controller PC-3100 and transmitter PH-300T:
A. Connect the GLASS point of transmitter PH-300 terminal to the electrode central spindle.
(Note: Remove the black conductive rubber); connect the REF point of transmitter PH-300
terminal to the electrode network cable.
B. See the two-wire distributing system and three-wire distributing system in the following
page.
C. PT-1000 on transmitter PH-300 terminal is an automatic temperature compensation probe,
or applies a fixed temperature compensation resistance.
D. The V+ and V- of transmitter PH-300 terminal respectively connect to DC12V+ and – of
the controller.
E. The S+ and S- on transmitter PH-300 terminal respectively connect to GLASS and REF of
the controller.
F. The I+ and I- on transmitter PH-300 terminal are output (4-20mA), which can connect to
devices that receive current signals. (Note: The current output signal of this transmitter
is not insulating, so use it with much care!)
Note: Refer to the following table for proper fixed temperature compensation resistance
Temperature 0℃ 5℃ 10℃ 15℃ 20℃
R value 1000Ω 1019.25Ω 1038.5Ω 1057.75Ω 1077Ω
Temperature 25℃ 30℃ 35℃ 40℃ 45℃
R value 1096.25Ω 1115.5Ω 1134.75Ω 1154Ω 1173.25Ω
Temperature 50℃ 55℃ 60℃ 65℃ 70℃
R value 1192.5Ω 1211.75Ω 1231Ω 1250.25Ω 1269.5Ω
Temperature 75℃ 80℃ 85℃ 90℃ 100℃
R value 1288.75Ω 1308Ω 1327.25Ω 1346.5Ω 1385Ω
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